Seagate User manual

Brand: Seagate

Model

Category: Internal hard drives

Type: User manual

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Product Manual

DB35 Serial ATA

100362348

Rev. E

August 2007

ST3400832SCE

ST3300831SCE

ST3250823SCE

ST3200826SCE

Publication number: 100362348, Rev. E

August 2007

Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC

in the United States and/or other countries. DB35 Series, SeaTools and SeaTDD are either trademarks or

registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States

and/or other countries. All other trademarks or registered trademarks are the property of their respective

owners.

One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity

may vary depending on operating environment and formatting. Seagate reserves the right to change, with-

out notice, product offerings or specifications.

DB35 Serial ATA Product Manual, Rev. E

Contents

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.14 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.14.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 14

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.2 Breather filter hole precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

DB35 Serial ATA Product Manual, Rev. E

iii

List of Figures

Figure 1. Typical 5V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 2. Typical 12V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 3. Breather filter hole location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 4. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Figure 5. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 6. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

DB35 Serial ATA Product Manual, Rev. E

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate

DB35 Serial ATA (SATA) model drives:

DB35 Serial ATA

• ST3400832SCE

• ST3300831SCE

• ST3250823SCE

• ST3200826SCE

These drives provide the following key features:

• Minimal acoustics for consumer storage usage profile.

• Bedroom quiet performance.

• Optimized power for consumer storage devices.

• Spinup current limited to a maximum of 2 amps.

• 7,200 RPM spindle speed.

• 8 Mbyte buffer on: ST3400832SCE, ST3300831SCE, ST3250823SCE, and ST3200826SCE models.

• High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).

• Tunneling Magnetoresistive (TMR) recording heads.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• Native Command Queueing with command ordering to increase performance in demanding applications.

• Full-track multiple-sector transfer capability without local processor intervention.

• 300 Gs nonoperating shock.

• Support for S.M.A.R.T. drive monitoring and reporting.

• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.

• Supports latching SATA cables and connectors.

DB35 Serial ATA Product Manual, Rev. E

1.1 About the Serial ATA interface

The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary

advantages include:

• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump-

ers or other configuration options.

• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.

• Scalability to higher performance levels.

In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial

ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current

system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host

adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two

drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they

were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0

(master) devices.

Note. The host adapter may, optionally, emulate a master/slave environment to host software where two

devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and

Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a

master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA

environment.

The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide

backward compatibility with existing host systems and software. The Command and Control Block registers,

PIO and DMA data transfers, resets, and interrupts are all emulated.

The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device regis-

ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi-

tional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized

AT Attachment” specification. The specification can be downloaded from www.serialata.org.

DB35 Serial ATA Product Manual, Rev. E

2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal

power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the

ST3400832SCE, ST3300831SCE, ST3250823SCE and ST3200826SCE models.

2.1 Specification summary table

The specifications listed in this table are for quick reference. For details on specification measurement or defi-

nition, see the appropriate section of this manual.

Table 1: Drive specifications

Drive specification ST3400832SCE ST3300831SCE ST3250823SCE ST3200826SCE

Formatted Gbytes (512 bytes/sector)* 400 300 250 200

Guaranteed sectors 781,422,768 586,072,368 488,397,168 390,721,968

Bytes per sector 512

Default sectors per track 63

Default read/write heads 16

Default cylinders 16,383

Recording density in BPI (bits/inch max) 763,000

Track density TPI (tracks/inch avg) 120,000

Areal density (Mbits/inch2 avg) 91,560

Spindle speed (RPM) 7,200

Internal data transfer rate (Mbytes/sec max) 95

Sustained transfer rate OD (Mbytes/sec) 65

I/O data transfer rate (Mbytes/sec max) 150

ATA data-transfer modes supported PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6

SATA data-transfer modes supported 1.5 Gbits/sec

Cache buffer 8 Mbytes

Height (max) 26.11 mm (1.028 inches)

Width (max) 101.85 mm (4.010 inches)

Length (max) 146.99 mm (5.787 inches)

Weight (max) grams / lb. 635 / 1.39

Average latency (msec) 4.16

DB35 Serial ATA Product Manual, Rev. E

Power-on to ready (typical) 17.0 sec

Standby to ready (typical) 16.0 sec

Track-to-track seek time (msec typical) 0.8 (read), 1.0 (write)

Average seek (msec typical) 18 (read), 20 (write)

Startup current (typical) 12V (peak) 2.0 amps

Seek power (typical) 8.6 watts

Operating (Consumer Storage Profile) 7.2 watts

Idle mode (typical) 6.9 watts

Standby mode (typical) 0.80 watts

Sleep mode (typical) 0.80 watts

Voltage tolerance

(including noise) 5V ± 5%

12V ± 10%

Ambient temperature 0° to 60°C (operating)

–40° to 70°C (nonoperating)

Temperature gradient

(°C per hour max) 20°C (operating)

30°C (nonoperating)

Relative humidity 5% to 90% (operating)

5% to 95% (nonoperating)

Relative humidity gradient 30% per hour max

Wet bulb temperature

(°C max) 37.7 (operating)

40.0 (nonoperating)

Altitude, operating –60.96 m to 3,048 m

(–200 ft to 10,000+ ft)

Altitude, nonoperating

(meters below mean sea level, max) –60.96 m to 12,192 m

(–200 ft to 40,000+ ft)

Shock, operating (max at 2 msec) 63 Gs

Shock, nonoperating (max at 2 msec) 300 Gs

Vibration, operating 0.25 G acceleration

Vibration, nonoperating 0.25 G (5–22 Hz)

5.0 Gs (22–350 Hz)

Drive acoustics, sound power (bels)

Idle** (bels) 2.6 (typical)

2.8 (max) 2.4 (typical)

2.7 (max)

Operational (bels) 2.8 (typical)

3.0 (max) 2.8 (typical)

3.0 (max)

Nonrecoverable read errors 1 per 1014 bits read

Annualized Failure Rate (AFR) 0.34%

Service life 5 Years

Contact start-stop cycles

(25°C, 50% relative humidity) 50,000

Table 1: Drive specifications

Drive specification ST3400832SCE ST3300831SCE ST3250823SCE ST3200826SCE

DB35 Serial ATA Product Manual, Rev. E

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

2.2 Formatted capacity

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

2.2.1 LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,

where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-

bit addressing support of drives with capacities over 137 Gbytes.

2.3 Default logical geometry

LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,

where n is the number of guaranteed sectors as defined above.

Supports Hotplug operation per SATA II

specification Yes

Model Formatted capacity* Guaranteed sectors Bytes per sector

ST3400832SCE 400 Gbytes 781,422,768 512

ST3300831SCE 300 Gbytes 586,072,368 512

ST3250823SCE 250 Gbytes 488,397,168 512

ST3200826SCE 200 Gbytes 390,721,968 512

Cylinders Read/write heads Sectors per track

16,383 16 63

Table 1: Drive specifications

Drive specification ST3400832SCE ST3300831SCE ST3250823SCE ST3200826SCE

DB35 Serial ATA Product Manual, Rev. E

2.4 Recording and interface technology

2.5 Physical characteristics

2.6 Seek time

Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using

drive diagnostics. The specifications in the table below are defined as follows:

• Track-to-track seek time is an average of all possible single-track seeks in both directions.

• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between

random tracks, less overhead.

Note. These drives are designed to consistently meet the seek times represented in this manual. Physical

seeks, regardless of mode (such as track-to-track and average), are expected to meet or exceed

the noted values. However, due to the manner in which these drives are formatted, benchmark

tests that include command overhead or measure logical seeks may produce results that vary from

these specifications.

Interface Serial ATA (SATA)

Recording method 16/17 EPRML

Recording density BPI (bits/inch max) 763,000

Track density TPI (tracks/inch avg) 120,000

Areal density (Mbits/inch2 avg) 91,560

Spindle speed (RPM) (± 0.2%) 7,200

Internal data transfer rate (Mbytes/sec max) 95

Sustained transfer rate OD (Mbytes/sec max) 65.0

I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.0)

Interleave 1:1

Cache buffer 8 Mbytes

Maximum height

(mm)

(inches)

26.11

1.028

Maximum width

(mm)

(inches)

101.85

4.010 +/- 0.010

Maximum length

(mm)

(inches)

146.99

5.787

Maximum weight

(grams)

(pounds)

635

1.39

Typical seek times (msec) Read Write

Track-to-track 0.8 1.0

Average 18 20

Average latency: 4.16 4.16

DB35 Serial ATA Product Manual, Rev. E

2.7 Start/stop times

2.8 Power specifications

The drive receives DC power (+5V and +12V) through a native SATA power connector. See Figure 5 on

page 19.

2.8.1 Power consumption

Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on

an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient

temperature.

• Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating

speed.

• Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and

does not execute a read or write operation. Servo electronics are active. Seek mode power represents the

worst-case power consumption, using only random seeks with read or write latency time. This mode is not

typical and is provided for worst-case information.

• Operating power and current

Operating power is measured using a standrad Consumer Storage Profile.

• Idle mode power

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in

a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/

write electronics are in power-down mode.

Power-on to Ready (sec) 15.5 (max)

Standby to Ready (sec) 14.0 (max)

Ready to spindle stop (sec) 10 (max)

DB35 Serial ATA Product Manual, Rev. E

2.8.1.1 Typical current profiles

Figure 1. Typical 5V startup and operation current profile

Figure 2. Typical 12V startup and operation current profile

Table 2: DC power requirements

Power dissipation (typical) Average (watts, 25° C) 5V typ amps 12V typ amps

Spinup — — 2.0 (peak)

Idle 6.9 0.353 0.519

Operating (Consumer Storage Profile) 7.2 0.500 0.400

Seeking 8.6 0.318 0.585

Standby 1.4 0.265 0.006

Sleep 1.4 0.265 0.006

DB35 Serial ATA Product Manual, Rev. E

2.8.2 Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on

the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave

injected noise at up to 10 MHz.

• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave

injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write

current.

2.8.3 Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%

12V ± 10%

2.8.4 Power-management modes

The drive provides programmable power management to provide greater energy efficiency. In most systems,

you can control power management through the system setup program. The drive features the following

power-management modes:

•Active mode

The drive is in Active mode during the read/write and seek operations.

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc

access is necessary.

•Standby mode

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set

the standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for

a specifiable length of time. The standby timer delay is established using a Standby or Idle command. In

Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive

accepts all commands and returns to Active mode any time disc access is necessary.

• Sleep mode

The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive

buffer is disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it

receives a Hard Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and

enters Standby mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and

begins counting down from its specified delay times to zero. If the standby timer reaches zero before any

Power modes Heads Spindle Buffer

Active Tracking Rotating Enabled

Idle Tracking Rotating Enabled

Standby Parked Stopped Enabled

Sleep Parked Stopped Disabled

DB35 Serial ATA Product Manual, Rev. E

drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the

drive accepts all commands and returns to Active mode when disc access is necessary.

2.9 Environmental specifications

2.9.1 Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.

Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions for

standard models. Recommended measurement locations are shown in Figure 6.

Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 44°C (112°F) at 10,000 feet

(3,048 meters).

2.9.2 Temperature gradient

2.9.3 Humidity

2.9.3.1 Relative humidity

2.9.3.2 Wet bulb temperature

2.9.4 Altitude

2.9.5 Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive

mounting screws. Shock may be applied in the X, Y or Z axis.

2.9.5.1 Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum

operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more

than two times per second.

Operating: 0° to 60°C (32° to 140°F)

Nonoperating: –40° to 70°C (–40° to 158°F)

Operating: 20°C per hour (68°F per hour max), without condensation

Nonoperating: 30°C per hour (86°F per hour max)

Operating: 5% to 90% noncondensing (30% per hour max)

Nonoperating: 5% to 95% noncondensing (30% per hour max)

Operating: 37.7°C (99.9°F max)

Nonoperating: 40°C (104°F max)

Operating: –60.96 m to 3,048 m (–200 ft. to 10,000+ ft.)

Nonoperating: –60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

DB35 Serial ATA Product Manual, Rev. E

2.9.5.2 Nonoperating shock

The nonoperating shock level that the drive can experience without incurring physical damage or degradation

in performance when subsequently put into operation is 300 Gs based on a nonrepetitive half-sine shock pulse

of 2 msec duration.

2.9.6 Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the

drive mounting screws. Vibration may be applied in the X, Y or Z axis.

2.9.6.1 Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards speci-

fied in this document are specified below.

2.9.6.2 Nonoperating vibration

The following table lists the maximum nonoperating vibration that the drive may experience without incurring

physical damage or degradation in performance when subsequently put into operation.

2.10 Acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea-

surements are consistent with ISO document 7779. Sound power measurements are taken under essentially

free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is

defined by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

5–350 Hz 0.25 G acceleration (zero to peak)

5–22 Hz 0.25 G

22–350 Hz 5.0 Gs

Table 3: Fluid Dynamic Bearing (FDB) motor acoustics

Acoustic mode

Models Idle Operational

ST3400832SCE 2.6 bels (typ)

2.8 bels (max) 2.8 bels (typ)

3.0 bels (max)

ST3300831SCE

ST3250823SCE

ST3200826SCE

2.4 bels (typ)

2.7 bels (max) 2.8 bels (typ)

3.0 bels (max)

DB35 Serial ATA Product Manual, Rev. E

2.11 Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in

performance when subjected to the radio frequency (RF) environments defined in the following table:

2.12 Reliability

Table 4: Radio frequency environments

Test Description Performance

level Reference

standard

Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air:

± 8 kV BEN 61000-4-2: 95

Radiated RF immunity 80 to 1,000 MHz, 3 V/m,

80% AM with 1 kHz sine

900 MHz, 3 V/m, 50% pulse

modulation @ 200 Hz

AEN 61000-4-3: 96

ENV 50204: 95

Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on

external I/O BEN 61000-4-4: 95

Surge immunity ± 1 kV differential, ± 2 kV com-

mon, AC mains BEN 61000-4-5: 95

Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms,

80% AM with 1 kHz sine AEN 61000-4-6: 97

Voltage dips, interrupts 0% open, 5 seconds

0% short, 5 seconds

40%, 0.10 seconds

70%, 0.01 seconds

EN 61000-4-11: 94

Nonrecoverable read errors 1 per 1014 bits read, max

Annualized Failure Rate (AFR) 0.34% (nominal power, 25°C ambient temperature)

Contact start-stop cycles 50,000 cycles

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

Service Life 5 Years

Preventive maintenance None required

DB35 Serial ATA Product Manual, Rev. E

2.13 Agency certification

2.13.1 Safety certification

The drives are recognized in accordance with UL 1950 and CSA C22.2 (950) and meet all applicable sections

of IEC950 and EN 60950 as tested by TUV North America.

2.13.2 Electromagnetic compatibility

Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the Elec-

tromagnetic Compatibility Directive (89/336/EEC). Testing is performed to the levels specified by the product

standards for Information Technology Equipment (ITE). Emission levels are defined by EN 55022, Class B and

the immunity levels are defined by EN 55024.

Seagate uses an independent laboratory to confirm compliance with the EC directives specified in the previous

paragraph. Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply

with the directives when used in the test systems, we cannot guarantee that all systems will comply with the

directives. The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O

cable (if necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators

should confirm EMC compliance and provide CE marking for their products.

Korean RRL

If these drives have the Korea Ministry of Information and Communication (MIC) logo, they comply with para-

graph 1 of Article 11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic

Compatibility (EMC) Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information

and Communication Republic of Korea.

These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibil-

ity (EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recog-

nized lab.

• EUT name (model numbers): ST3400832SCE, ST3300831SCE, ST3250823SCE and ST3200826SCE.

• Certificate numbers: ST3400832SCE E-H011-04-4534 (B)

ST3300831SCE E-H011-04-4534 (B)

ST3250823SCE E-H011-04-4533 (B)

ST3200826SCE E-H011-04-4533 (B)

• Trade name or applicant: Seagate Technology

• Manufacturing date: November 2004

• Manufacturer/nationality: Singapore and China

DB35 Serial ATA Product Manual, Rev. E

Australian C-Tick (N176)

If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZS3548

1995 and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communi-

cation Authority (ACA).

2.13.3 FCC verification

These drives are intended to be contained solely within a personal computer or similar enclosure (not attached

as an external device). As such, each drive is considered to be a subassembly even when it is individually mar-

keted to the customer. As a subassembly, no Federal Communications Commission verification or certification

of the device is required.

Seagate Technology LLC has tested this device in enclosures as described above to ensure that the total

assembly (enclosure, disc drive, motherboard, power supply, etc.) does comply with the limits for a Class B

computing device, pursuant to Subpart J, Part 15 of the FCC rules. Operation with noncertified assemblies is

likely to result in interference to radio and television reception.

Radio and television interference. This equipment generates and uses radio frequency energy and if not

installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio

and television reception.

This equipment is designed to provide reasonable protection against such interference in a residential installa-

tion. However, there is no guarantee that interference will not occur in a particular installation. If this equipment

does cause interference to radio or television, which can be determined by turning the equipment on and off,

you are encouraged to try one or more of the following corrective measures:

• Reorient the receiving antenna.

• Move the device to one side or the other of the radio or TV.

• Move the device farther away from the radio or TV.

• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.

If necessary, you should consult your dealer or an experienced radio/television technician for additional sug-

gestions. You may find helpful the following booklet prepared by the Federal Communications Commission:

How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the Super-

intendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication num-

ber 004-000-00345-4.

2.14 Environmental protection

Seagate designs its products to meet environmental protection requirements worldwide, including regulations

restricting certain chemical substances.

2.14.1 European Union Restriction of Hazardous Substances (RoHS)

The European Union Restriction of Hazardous Substances (RoHS) Directive restricts the presence of chemical

substances, including Lead (Pb), in electronic products effective July 2006. Although amendments to the

Euro-pean Union’s Restriction of Hazardous Substances (RoHS) Directive have not been finalized, to the best

of our knowledge the disc drives documented in this publication will comply with the final RoHS Directive

require-ments.

A number of parts and materials in Seagate products are procured from external suppliers. We rely on the

rep-resentations of our suppliers regarding the presence of RoHS substances in these parts and materials. Our

supplier contracts require compliance with our chemical substance restrictions, and our suppliers document

their compliance with our requirements by providing material content declarations for all parts and materials for

the disc drives documented in this publication. Current supplier declarations include disclosure of the inclusion

of any RoHS-regulated substance in such parts or materials.

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